A new coupled inductors design in 2-phase interleaving VRM

Yugang, Yang; Dong, Yan; Lee, Fred C.

doi:10.1109/ipemc.2009.5157410

Cited by 36 publications

(34 citation statements)

References 4 publications

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“…Integrating the two magnetic elements does not guarantee an efficiency improvement. As by [42] the integration of the two inductors usually decreases the efficiency. However, the claim that the integration of two inductors will increase or decrease the efficiency cannot be generalized, because it depends mostly on the application and on the design.…”

Section: Simulation and Experimental Resultsmentioning

confidence: 99%

Fully Integrated Buck and Boost Converter as a High Efficiency, High-Power-Density Off-Line LED Driver

Abdelmessih

Alonso

Costa

et al. 2020

IEEE Trans. Power Electron.

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In this article, a high-power-density off-line lightemitting diode (LED) driver is proposed. The proposed ac-dc driver is the novel integrated buck and boost converter (IBBC). Besides the high-power-density, the converter shows a high power factor (PF), and a low total harmonic distortion (THD). The IBBC is a two-stage driver that features just one controlled switch, which leads to high PF and low THD operation ensuring high efficiency, and size and cost reduction. Moreover, the switch current is minimized as it conducts the higher of the buck or boost converter, but not the addition of both as in other integrated converters. Moreover, for a further increase of the power-density, a magnetic integration is made by integrating the two inductors of both the buck and boost converters in one core. Thus, the proposed converter has been named as fully integrated buck and boost converter (FIBBC). In this paper, the IBBC is analyzed, and a design methodology is proposed. Also, this article presents a magnetic analysis of the novel FIBBC. In addition, a comparison between two prototypes is presented, one for the IBBC and another for the FIBBC, both of them supplying an LED luminaire of 46 V/ 0.575 A. The FIBBC shows a high PF equal to 0.994, very small THD of 10%, output current ripple of 6%, and efficiency of 92.62%, which represents a landmark on the efficiency of integrated converters. Index Terms-Fully integrated buck and boost converter (FIBBC), high efficiency light-emitting diodes (LEDs) driver, integrated converters, magnetic integration, off-line LED drivers, power factor correction. I. INTRODUCTIONL IGHT-EMITTING diodes (LEDs) were first developed in 1960s [1]. Nowadays, they have become one of the most popular lighting sources in a wide variety of applications.

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Section: Simulation and Experimental Resultsmentioning

confidence: 99%

Fully Integrated Buck and Boost Converter as a High Efficiency, High-Power-Density Off-Line LED Driver

Abdelmessih

Alonso

Costa

et al. 2020

IEEE Trans. Power Electron.

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“…Los Componentes Magnéticos Integrados, CMIs, aumentan la densidad de potencia y reducen el coste en los sistemas que los incorporan, por lo que son ampliamente utilizados en aplicaciones de conversión de potencia CC-CC monofásica y multifásica [72]- [78] y de filtros EMI [79]- [82]. Sin embargo, el diseño de los CMI es complejo, y su modelado depende de la precisión requerida por la aplicación.…”

Section: Opciones De Modelado De Componentes Magnéticos Integradosunclassified

Non-inverting and Non-isolated Magnetically Coupled Buck–Boost Bidirectional DC–DC Converter

Rodriguez-Lorente

Barrado

Calderón

et al. 2020

IEEE Trans. Power Electron.

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Quiero agradecer tanto, por tanto, y a tanta gente, que no me va a quedar más remedio que escribir algo de todo ello en este apartado, aunque por lo que dice la plantilla oficial no sea obligatorio.No hay "en primer lugar" en mis agradecimientos, así que podéis leerlos en cualquier orden. Si no os encontráis en alguno de ellos, tened claro que es despiste mío porque estar, estáis.Gracias a todos los profesores, en general. En particular, gracias a los profesores del GSEP por acompañarme en mi periplo, compartir vuestra experiencia y vuestros chistes. En especial, a mi tutor, Andrés, por darme la oportunidad de unirme al grupo, por acogerme, enseñarme, guiarme y tenerme paciencia.Gracias a mis compañeros-amigos de la universidad. Gente genial, rara, divertida y entrañable, que tiene la habilidad de hacer que una bola de estrés se deshaga en cuestión de minutos. De eso y de que considere tomar café antes que agua.

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“…To consider the model in 3D representation, the partially coupled flux path was divided into five parts. Hence, the flux path can be obtained using flux‐tube approximation [23, 24]. The schematic view of the equivalent flux tube in the fully and partially coupled flux paths, as shown in Fig.…”

Section: Mec Model Of Inductive Pickupmentioning

confidence: 99%

“…However, considerable execution time is generally required when a three‐dimensional (3D) complex model is considered. As an alternative, the MEC not only reduces the run time of a computational process but also obtains the result by solving the reluctance to estimate the magnetic characteristics of the given structure [11, 22–24].…”

Section: Introductionmentioning

confidence: 99%

Design and implementation of contactless power track system with Y‐shaped inductive pickup

Lee¹,

Shen

Chang³

2016

IET Power Electronics

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This study investigated an inductive power transfer technique to construct a new inductive pickup for contactless power track systems. Several three-phase symmetrical shapes of the core material were simulated for the inductive pickup. The process to design the proposed pickup including a development of the core shape is discussed in this study. A feature of the proposed pickup is its three-phase symmetrical shape, which enables sharing the flux path and achieving low reluctance. To evaluate the coupling ability of the proposed pickup, a magnetic equivalent circuit with air gap was established. The finite element method and experiments on the contactless power track prototype were analysed to validate the proposed inductive pickup and its magnetic equivalent circuit. A complete Y-shaped inductive pickup was implemented and tested on a 1.2 kW laboratory-scale prototype. Fundamental experiments were carried out, and the overall system efficiency and pickup performance were subsequently demonstrated to verify the feasibility and capability of the proposed contactless power track system.

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A new coupled inductors design in 2-phase interleaving VRM

Cited by 36 publications

References 4 publications

Fully Integrated Buck and Boost Converter as a High Efficiency, High-Power-Density Off-Line LED Driver

Fully Integrated Buck and Boost Converter as a High Efficiency, High-Power-Density Off-Line LED Driver

Non-inverting and Non-isolated Magnetically Coupled Buck–Boost Bidirectional DC–DC Converter

Design and implementation of contactless power track system with Y‐shaped inductive pickup

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